forked from LBRYCommunity/lbry-sdk
28 lines
742 B
Python
28 lines
742 B
Python
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from lbrynet.core.cryptoutils import get_lbry_hash_obj
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import random
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blobhash_length = get_lbry_hash_obj().digest_size * 2 # digest_size is in bytes, and blob hashes are hex encoded
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def generate_id(num=None):
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h = get_lbry_hash_obj()
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if num is not None:
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h.update(str(num))
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else:
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h.update(str(random.getrandbits(512)))
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return h.digest()
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def is_valid_blobhash(blobhash):
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"""
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@param blobhash: string, the blobhash to check
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@return: Whether the blobhash is the correct length and contains only valid characters (0-9, a-f)
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"""
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if len(blobhash) != blobhash_length:
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return False
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for l in blobhash:
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if l not in "0123456789abcdef":
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return False
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return True
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